Home / 1,276,008,333.49-1,912,920,783.38-489,626,314.93

Finding the Fourth Proportional to 1,276,008,333.49, 1,912,920,783.38 and 489,626,314.93

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Solution

The fourth proportional to 1,276,008,333.49, 1,912,920,783.38 and 489,626,314.93 is: 734,020,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,008,333.49 : 1,912,920,783.38 = 489,626,314.93 : x
  2. Step 2: Convert to fraction form
    1,276,008,333.49/1,912,920,783.38 = 489,626,314.93/x
  3. Step 3: Cross multiply
    1,276,008,333.49x = 1,912,920,783.38 × 489,626,314.93
  4. Step 4: Simplify right side
    1,276,008,333.49x = 936,616,353,909,793,664
  5. Step 5: Solve for x
    x = 936,616,353,909,793,664/1,276,008,333.49
  6. Step 6: Final answer
    x = 734,020,561.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.